Principal Investigator(s):United States Department of Justice. Federal Bureau of Investigation

Summary:

Since 1930, the Federal Bureau of Investigation has
compiled the Uniform Crime Reports (UCR) to serve as a periodic
nationwide assessment of reported crimes not available elsewhere in
the criminal justice system. Each year, this information is reported
in four types of files: (1) Offenses Known and Clearances by Arrest,
(2) Property Stolen and Recovered, (3) Supplementary Homicide Reports
(SHR), and (4) Police Employee (LEOKA) Data. The Supplementary
Homicide Reports provide incident-based information on criminal
homicides reported to the polic... (more info)

Since 1930, the Federal Bureau of Investigation has
compiled the Uniform Crime Reports (UCR) to serve as a periodic
nationwide assessment of reported crimes not available elsewhere in
the criminal justice system. Each year, this information is reported
in four types of files: (1) Offenses Known and Clearances by Arrest,
(2) Property Stolen and Recovered, (3) Supplementary Homicide Reports
(SHR), and (4) Police Employee (LEOKA) Data. The Supplementary
Homicide Reports provide incident-based information on criminal
homicides reported to the police. These homicides consist of murders,
non-negligent manslaughter, and justifiable homicides. The data,
provided monthly by UCR agencies, contain information describing the
victim of the homicide, the offender, and the relationship between
victim and offender.

Starting with the year 1998, each of the four parts of
the UCR data collection archived by ICPSR is released as a separate
study under its own study number. The Supplementary Homicide Reports
data for the years 1975-1997 can be found in UNIFORM CRIME REPORTING
PROGRAM DATA: [UNITED STATES] (ICPSR 9028).

Methodology

Mode of Data Collection:
self-enumerated questionnaire

Extent of Processing: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of
disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major
statistical software formats as well as standard codebooks to accompany the data. In addition to
these procedures, ICPSR performed the following processing steps for this data collection: